/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

/**

 * @file

 * @brief HatModel class implementation

 */

#include "HatModel.h"

#include <QDir>

#include <QPixmap>

#include <QPainter>

#include <QList>

#include "hwform.h" // player hash

#include "DataManager.h"

HatModel::HatModel(QObject* parent) :

    QStandardItemModel(parent)

{}

void HatModel::loadHats()

{

    qDebug("HatModel::loadHats()");

    // this method resets the contents of this model (important to know for views).

    QStandardItemModel::beginResetModel();

    QStandardItemModel::clear();

    // New hats to add to model

    QList<QStandardItem *> hats;

    // we'll need the DataManager a few times, so let's get a reference to it

    DataManager & dataMgr = DataManager::instance();

    // Default hat icon

    QPixmap hhpix = QPixmap("physfs://Graphics/Hedgehog/Idle.png").copy(0, 0, 32, 32);

    // my reserved hats

    QStringList hatsList = dataMgr.entryList(

                               "Graphics/Hats/Reserved",

                               QDir::Files,

                               QStringList(playerHash+"*.png")

                           );

    int nReserved = hatsList.size();

    // regular hats

    hatsList.append(dataMgr.entryList(

                        "Graphics/Hats",

                        QDir::Files,

                        QStringList("*.png")

                    )

                   );

    int nHats = hatsList.size();

    // Add each hat

    for (int i = 0; i < nHats; i++)

    {

        bool isReserved = (i < nReserved);

        if (isReserved) continue; // For some reason, reserved hats were added in 9.19-dev, so this will hide them. Uncomment to show them.

        QString str = hatsList.at(i);

        str = str.remove(QRegExp("\\.png$"));

        QPixmap hatpix(

                "physfs://Graphics/Hats/" + QString(isReserved?"Reserved/":"") + str +

                ".png"

        );

        // rename properly

        if (isReserved)

            str = "Reserved "+str.remove(0,32);

        // Color for team hats. We use the default color of the first team.

        QColor overlay_color = QColor(colors[0]);

        QPixmap ppix(32, 37);

        ppix.fill(QColor(Qt::transparent));

        QPainter painter(&ppix);

        QPixmap opix(32, 37);

        opix.fill(QColor(Qt::transparent));

        QPainter overlay_painter(&opix);

        // The hat is drawn in reverse: First the color overlay, then the hat, then the hedgehog.

        // draw hat's color layer, if present

        int overlay_offset = -1;

        if((hatpix.height() == 32) && (hatpix.width() == 64)) {

            overlay_offset = 32;

        } else if(hatpix.width() > 64) {

            overlay_offset = 64;

        }

        if(overlay_offset > -1) {

            // colorized layer

            overlay_painter.drawPixmap(QPoint(0, 0), hatpix.copy(overlay_offset, 0, 32, 32));

            overlay_painter.setCompositionMode(QPainter::CompositionMode_Multiply);

            overlay_painter.fillRect(0, 0, 32, 32, overlay_color);

            // uncolorized layer and combine

            painter.drawPixmap(QPoint(0, 0), hatpix.copy(overlay_offset, 0, 32, 32));

            painter.setCompositionMode(QPainter::CompositionMode_SourceAtop);

            painter.drawPixmap(QPoint(0, 0), opix.copy(0, 0, 32, 32));

        }

        // draw hat below the color layer

        painter.setCompositionMode(QPainter::CompositionMode_DestinationOver);

        painter.drawPixmap(QPoint(0, 0), hatpix.copy(0, 0, 32, 32));

        // draw hedgehog below the hat

        painter.drawPixmap(QPoint(0, 5), hhpix);

        painter.end();

        if (str == "NoHat")

            hats.prepend(new QStandardItem(QIcon(ppix), str));

        else

            hats.append(new QStandardItem(QIcon(ppix), str));

    }

    QStandardItemModel::appendColumn(hats);

    QStandardItemModel::endResetModel();

}